Not sure if you still need this but the answer is D. The government cannot regulate the content of a protest.
Answer:
D) the assult of a white girl by an African-American teenager
Explanation:
The massacre began during the Memorial Day weekend after 19-year-old Rowland, a black shoeshiner, was accused of assaulting Sarah Page, the 17-year-old white elevator operator of the nearby Drexel Building. He was taken into custody.
55 electoral votes. Hope you find that useful